ME 3701 Chapter : ME3701 LAB1
Document Summary
This report contains the process and conclusions of an indoor laboratory experiment to determine the interatomic spacing and the crystal structure of aluminum"s crystalline sample using x-ray diffraction technique. Brag"s law and the data collected from constructive interference of x-ray diffraction were used to identify the crystal structure of aluminum sample. This information was used in combination with the expressions for interatomic spacing to determine lattice constants. As a conclusion, the result of the experiment showed that aluminum metal has face-centered cubic (fcc) crystal structure. We found four values of inter-planar distances and respective miller indices. Title: introduction, experimental apparatus and procedure, experimental results, discussion, conclusion, references, appendix. The list of nomenclature: h, k, l = miller indices. = incident angle n = order of diffraction = 1 a = lattice parameter d = inter-planar spacing. There are a number of metallic and ceramic materials are used in engineering for various purposes, which are consisted of distinct crystalline microstructures.
